A kind of cemented carbide saw blade and its welding method

A technology of cemented carbide and welding method, applied in welding equipment, welding equipment, metal sawing equipment, etc., can solve the problems of high hardness, uneven hardness of sawtooth seat, stress cracks, etc.

Active Publication Date: 2020-01-21
ZHONGSHAN KINGWAVE SAW BLADE MFG LTD
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Problems solved by technology

[0004] The purpose of the present invention is to provide a cemented carbide saw blade and its welding method. On the one hand, the present invention solves the problem of uneven and high hardness of the sawtooth seat, which leads to the cutting of the tooth seat.
On the other hand, it solves the problem of stress cracks between adjacent saw teeth, reduces the scrapping of products and reduces the safety problems of product use

Method used

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  • A kind of cemented carbide saw blade and its welding method
  • A kind of cemented carbide saw blade and its welding method
  • A kind of cemented carbide saw blade and its welding method

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0022] figure 1 It is a welding principle diagram of a welding method of a cemented carbide saw blade provided by the present invention.

[0023] Such as figure 1 As shown, the first embodiment of the present invention provides a welding method for cemented carbide saw blades, including:

[0024] S1, heating the placed cemented carbide cutter head 2, welding wire, flux and saw blade substrate, the heating time is 4-10 ...

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Abstract

The invention discloses a cemented carbide saw blade and a welding method thereof. The method includes: S1, heating the placed cemented carbide cutting head, saw blade base, welding wire and flux; S2, heating at 760°C- Under the temperature environment of 840 °C, the molten welding wire is spread in the gap between the cemented carbide cutter head and the saw blade base by the wetting effect of the flux; S3, cooling to obtain a preliminary welded body, when the temperature of the preliminary welded body is low At 350 ° C, the preliminary welded body is tempered for the first time; S4, within 1 to 3 hours after the first tempering, the preliminary welded body is tempered for the second time to obtain a cemented carbide saw blade; The secondary tempering needs to be performed in a closed container and the temperature of each space in the container should be kept consistent. The present invention solves the problem of tooth base fracture during cutting and the problem of stress cracks between adjacent teeth.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a cemented carbide saw blade and a welding method thereof. Background technique [0002] Carbide circular saw blades are widely used in furniture manufacturing, engineering construction, and home decoration industries. [0003] The existing technology is performed by manual welding or automatic equipment welding. During the welding process, due to the difficulty in controlling the temperature and time, tempering cannot completely eliminate the stress of the base tooth seat and reduce the hardness of the base tooth seat, resulting in: ①In the cutting process, the aluminum alloy saw blade is prone to the safety problem of tooth seat fracture due to the large impact; ②For the saw blade with a tooth pitch ≤ 12mm, due to the existence of the welding heat affected zone between two adjacent saw teeth during welding, Critical staggered state, so prone to safety issues of tensile stress...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23D61/00B23D65/00B23K31/02
CPCB23D61/00B23D65/00B23K31/02B23K2101/20B23D61/04B23D61/14B23K1/002B23K31/025B23B27/18
Inventor 覃旭黄皓楠
Owner ZHONGSHAN KINGWAVE SAW BLADE MFG LTD
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